Plate Tectonics Review

What does the theory of continental drift state?

• The continents were once joined in a super-continent and have moved over time
• Continents are stationary and do not move
• The Earth is broken into lithospheric plates that move due to convection currents
• none of the above

Who is the person credited with developing the theory of continental drift?

• Harry Hess
• Galileo
• Alfred Wegener
• Newton

Warm air rises and the cool air sinks demonstrates this type of heat transfer. 

• subduction
• convection
• convergent

What is Pangaea?

• the name of a German scientist
• the name of the super-continent that existed millions of years ago
• another name for continental drift
• the name of an ancient fossil

Most geologists rejected Alfred Wegener's idea of continental drift because...

• it did not agree with their current theory
• Wegener was interested in what Earth was like millions of years ago
• Wegener used several different types of evidence to support his hypothesis
• Wegener could not identify the force that moved the continents

The geological theory that states that pieces of Earth's lithosphere are in constant, slow motion is the theory of

• subduction
• plate tectonics
• evolution
• seafloor spreading

One of the main proofs used for continental drift was that

• the continents fit together like puzzles

• common animal fossils found on separated continents

• tropical plant fossils found in frozen areas

• all of these

True or False : Sea-floor Spreading adds new material to the ocean floor?

• True
• False

What are Mid-Ocean Ridges?

• A chain of underwater waterfalls 
• A chain of underwater volcanos
• A chain of underwater mountains
• A chain of underwater rocks

True or False: The Pacific Ocean is shrinking

• True
• False